Electric-lighting fixture



M. HERSKOVITZ.

ELECTRIC LIGHTING FIXTURE.

APPLICATION FILED OCT. 18, I918.

- 1,39 Patented Nov. 1, 1921;

2 SHEETS-SHEET I- mn/nvron I A TTOR/VEY M. HERSKOVITZ. 'ELECTRICLIGHTING FIXTURE. APPLICATION man OCT- I8, 1918. 1 1,395,710. Patented Nov, 1, 1921.

V I 2 SHEETS-SHEET 2.

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UNITED STATES P A T r o Flce.

MAX HERSKOVITZ, OF CHICAGO, ILLINOIS;

, ELECTRIC-LIGHTING FIXTURE.

Specification of Letters Patent.

Patented Nov. 1, 1921-.

Application an October is, 1918. Serial N5. 258,721. e

I To all w hom it may concern Be it known that 1, MAX Hnnsnovrrz, a citizen of the'United States, and a resident of Chicago, Cook county, and State of Illinois, have invented certain new and useful Improvements in Electric-Lighting Fixtures, of which the following is declared to be a full, clear,and exact description.

This invention relates to electric lighting fixtures, and its primary object is to provide a fixture that may be quickly and readily,

assembled, wired and attachedto a ceiling, wall or other support. Another object is to 'proyide an electric ligliting'fixture with a receptacle, as apart of-jthe fixture itself, of

improved construction for removably holding any o f the usual and well known stand ard electric sockets,snap, switches, "pull switches, plugs, insulators and'the like. The standard commercial sockets, switches, and

switches a nd the like, may be held in the fixture. In other words, I dispense with the use of the casing of electric sockets, switches and so forthinthe-present fixture, thereby savinga large proportion of the cost of the switch and considerable labor, Moreover,

the inventionprovides for a form 0f fixture that may be accommodatedfto varioustypes of fixtures fs chv as, pendant'Ystem, wall bracket fixtures and ceiling fixtures,

, One'of the partmularadvantages of invention is, that'it does away with the usualinsi'ilating joints which must be used in almost all electric lighting fixtures when installing them. This is because I- can use,

heavy'insulated wire at theextreme-end of the'fixtu're i The invention consists the several novel features hereinafter fully; set forth and claimed.

The invention is clearlyiillustrated in the I i T thecombined; shade holder and-locking deaccompanying drawings, in which; v Figure 1, isa side-,elevationof pendant stem electric lightingfixture, embodying a simple form of the present invention; Fig.

2, is a side elevation of an embodiment of the invention in'the form of a wall bracketfixture Fig. 3, is a side elevation of an embodiment of the invention in the form of a ceiling fixture; Fig. 4, is a detail, central vertical section'jof the switch containing members of the fixture shown in Fig. 1, a chain pull switch being shown therein partly broken away, theline of section is'taken at H in Fig. 5; Fig. 5, is a detail horizontal section taken on line 5+5 in Fig. 4; Fig. 6, is a'detail, central, vertical section taken on. line 6-6 in Fig. 5; Fig. 7 is a side elevation of a fragment of the combined stem and receptacle, and Fig. 8, is a detail, central vertical section of the combinedlocking device and shade holder, the line of section being taken at ,8 ',8 inlFig. 5.

Referring to saiddrawings and first to Figs. 1 and 4 to 8 inclusive, the reference character 15'designates a pendant tubular stem, which has a screw. threadedend portion 16, adapted to beattached to a. suitable; supporting member which is secured f to the ceiling.- Below itsend portion 16, the stem is formed with an outlet opening lfi for the conductor cords, A canopy -17, surrounds the upperportion ofithe stem,15, and, in-

closes the supporting andYconnecting mem-f hers and wires as usual. I p

The lower end ofthe stem .15, s enlarged to provide a receptacle 18, for holding the interior of an electric-socket 19, here'shown as of the chain pull type. For convenience, the stem and receptacle will be termed the combined stem and receptacle, and detachably' secured thereto is a lowershade holding' and locking member24, which for con venience, may be termed a combmed shade holder and locking device. Said COIIlblIlBdshadeholder and locking device hugsthe socket and locks the'same in place in the receptacle, making it securetherein. The means here shown for detachably connecting said combined stem and receptacle, and

combined shade holder. and locking device comprises lugs 25,011 thecombined stem and receptacle, and bayonet slots 26, ,formed on the ,internal face of the combinedshade holder and locking device... The bayonet slots open up through the upper edge of vice and have end portions 27, extending atv right angles to the'other. portions of the slots. It will be understood that by inserting the lugs 25, into the bayonetslots and turning one member upon the other, the lugs will be brought into the portions 27, of the slots thereby connecting the two members together. The combined stem and receptacle has an annular flange 28, against which the u er edge of the combined shade holder and locking device is firmly held by the lugs and bayonet slot connections. A set screw 29, is screwed in the combined shade holder and locking device, and its pro.- truding end liesin front of an edge 30, of a notch 30, in the combined stem and receptacle and positively prevents relative rota-- tion between the, combined stem and receptacle and combined shade holder and locking device. The screw 29, also bears against the body portion of the socket and steadies it. The arm 21, of the socket projects out through the notch 30.

tacle illustrated the combined shade holder and locking device 24, is formed with a shade holder which may comprise a flaring or skirt portion 31, in which are threaded screws 32, said screws acting to fasten. a

shade or globe 33, (see Fig. 1), to the shade holder. The socket 19, has the usual screw threaded shell portion 33, for holding an incandescent electric light bulb. shown.)

. In theform illustrated in Fig. 2, the tubular stem 15, extends at right angles to the axial line of the members 18, 24, and may be secured to the wall of a room. A canopy (Not 'orcover 17, surrounding the stem is provided, as usual. The socket containing members referred to as the combined stem and receptacle, and combined shade holder and locking device, may be constructed in ac cordance with the one previously described and may contain a socket, having a switch, or without a switch, in which latter case the switch is remotely located. This form of the invention adaptsit for use as a wall bracket fixture. v p

The form illustrated in Fig. 3, the'combined stem and receptacle 18 and combined shade holder and locking device 241*, are constructed as before described except that the, tubular stem, which is employed in the forms heretofore describechis replacedfby a threaded neck 16 ,directl above the recep-f 'tacle 18, which is formed with 3' flaring part 17", that acts as a canopy "for covering the wires and connecting members between the fixture and ce111ng. The short neck portion v16",is formed onlthe inside of the eanopy 17 'and is internally screw threaded, whereby the. fixture may be screwed upon suitable: supporting member which is fas tened to the ceiling. This form is used whereiit is desired to have the lamp close to the ceiling. j I d Ki lers or lessvariatiqn of the exact details of construction is possible without departing from the spirit of this invention; I desire,

therefore, not to limit myself to the exact and desire to secure by Letinterior of an electric contact member, there being a shoulder formed on the outer face of said enlargement and a lower holding memher, at the open end of said receptacle detachably secured-against said shoulder and act In the form of combined stem and rec'ep-' ing to secure said electric contact member in the receptacle, said lower holding memberv being provided with shade holding means.

2. An electric lighting fixture, comprising a hollow fixturestem, formed .at one end with a threaded portion for directly attaching it to a fixture supporting member andhaving an outlet opening adjacent said end, said stem being formed at its other end with an open'ended enlargement to provide a receptacle for the reception of the interior of an electric socket, there being an'annular shoulder formed on the outer j face, of said enlargement, and alo-wer holding-member at the open end of said receptacle and de tachably secured against said annularshoulder and having aninternal shoulder acting to secure said electric socket in the receptacle, said lower holding memberbeing provided with shade holding means.

3. An electric lighting fixture, comprising a hollow fixture stem formed at one end with a lower holding member detaehably f con? nected to [the open end of saidjreceptaele,

and having an internal annulan'shoulderffor supporting said electric socket, said lower holding memberjbeing provided with} shade holding means, I 4. An electriclighting fixture, comprising a hollow fixture stem "formed atoneendwithmeans for directly attaching it"toj a fixture.

supporting member. and having an outlet pe ldiaq ptis id n Sa st m being formed at its other end with an openjen'de enlargement to providea receptacle for the reception rale interior'o'f an electric socket, there being anj annular- "shoulder formed ion the external face of said enlargement, and oc ng li ss'the rbelor, and. a leve h ld? ing member formed with bayonet slots 00- acting with said flange and lugs to detachably connect the enlargement with said lower holding member, said lower holding member being also formed with a socket supporting shoulder and having means for supporting a shade.

'5. In an electric lighting fixture, a tubular stem formed at one end with a receptacle, having an annularfiange on its exterior and a nlnralitv of liursrtherehelowr alcwenmem receptacle to prevent relative rotation in one direction between said members.

6. In an electric lighting fixture, a tubular stem formed at one end with a receptacle having an annular flange and lugs therebelow, there being a notch in the lower edge of said receptacle, a lower member "formed with bayonet slots for the reception of said lugs and bearing against said flange, and a screw, threaded in said lower member and protrud- :itic: 13 lo isisii d ilgug a lab (l1 slarinisc; guziafsu a is 3153111: ni r: 10:] c ialccaobicci it 1E1 machine] I (cirhpfaitacigi g t ivtl'ui 22 n [e digjg a 10 is rind 

